jqwidgets-scripts-custom/demos/Angular/treemap/defaultfunctionality/src/app/app.component.css

jQWidgets is an advanced jQuery, Angular 7, Vue, React, ASP .NET MVC, Custom Elements and HTML5 UI framework.

html, body {
  width: 100vw;
  height: 100vh;
  padding: 0;
  margin: 0;
}